mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2026-08-15 19:56:39 +00:00
Chris LuandGitHub
e56a1c4c05
The admin UI served embedded static files uncompressed and without cache headers: embed.FS has zero mod times, so no Last-Modified, no ETag, no 304s -- every page load re-downloaded ~700KB of css/js in full, which gets painful over slow or tunneled links. Gzip the static tree at generation time (go generate ./weed/admin) and embed only the compressed mirror, shrinking the binary ~1.5MB. The handler hands the pre-compressed bytes to gzip-capable clients, decompresses for the rest, and sets Cache-Control, per-variant content-hash ETags and Vary so repeat loads revalidate with a 304. bootstrap.min.css goes 232KB -> 30KB on the wire. A drift test keeps static_gz/ in sync with static/.
59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
//go:build ignore
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// Regenerates static_gz/, the gzipped mirror of static/ that is embedded
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// into the binary. Run after changing anything under static/:
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//
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// go generate ./weed/admin
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package main
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import (
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"bytes"
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"compress/gzip"
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"fmt"
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"io/fs"
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"os"
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"path/filepath"
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)
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func main() {
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if err := run(); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func run() error {
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if err := os.RemoveAll("static_gz"); err != nil {
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return err
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}
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return filepath.WalkDir("static", func(p string, d fs.DirEntry, err error) error {
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if err != nil || d.IsDir() {
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return err
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}
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data, err := os.ReadFile(p)
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if err != nil {
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return err
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}
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var buf bytes.Buffer
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zw, err := gzip.NewWriterLevel(&buf, gzip.BestCompression)
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if err != nil {
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return err
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}
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if _, err := zw.Write(data); err != nil {
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return err
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}
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if err := zw.Close(); err != nil {
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return err
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}
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rel, err := filepath.Rel("static", p)
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if err != nil {
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return err
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}
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out := filepath.Join("static_gz", rel+".gz")
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if err := os.MkdirAll(filepath.Dir(out), 0755); err != nil {
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return err
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}
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return os.WriteFile(out, buf.Bytes(), 0644)
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})
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}
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